Alert archive / Illinois / Severe Thunderstorm Watches / 2000

Severe Thunderstorm Watches in Illinois, April 2000

7 severe thunderstorm watches in April 2000. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm watches reaches back to 1997.

Severe Thunderstorm Watches by county

Each county as a circle sized by its count in April 2000. Tap one for its archive.

Severe Thunderstorm Watches
7
Busiest day
April 20, 20004 severe thunderstorm watches

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Apr 7, 2:15 PM CDTSevere Thunderstorm WatchSPCAlexander, Clinton, Jackson, Monroe, Perry, Randolph and 2 more6 hr
Apr 16, 5:45 PM CDTSevere Thunderstorm WatchSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more5 hr
Apr 19, 8:45 PM CDTSevere Thunderstorm WatchSPCJo Daviess4 hr
Apr 20, 12:45 AM CDTSevere Thunderstorm WatchSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more5 hr
Apr 20, 3:15 AM CDTSevere Thunderstorm WatchSPCAlexander, Jackson, Perry, Randolph, Union5 hr
Apr 20, 4:15 AM CDTSevere Thunderstorm WatchSPCAdams, Bond, Boone, Brown, Bureau, Calhoun and 61 more6 hr
Apr 27, 1:00 PM CDTSevere Thunderstorm WatchSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more5 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

40 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive19992001

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.